Tancovala žížala, Pt. 1

Recording by Eva Koupilová.

Recording identifiers

ISRC
CZA162000818
CopyrightID (CopyrightChains transaction hash)
0x19ff54c8a6b4a576d35f3d6d9d70d6937909f1042bfe3176b1076b53c0b1a10d
Copyright registration time
2026-06-19T17:22:12+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:58d1e86a9f68babce354579500315ec0c26f91412e035082a208198a31c7d977

What this proof establishes

This recording belongs to ProofProfile's historical evidence base derived from the pre-2022 AcousticBrainz and MusicBrainz corpus. ISRC is the stable recording-level bridge from that source corpus to the authoritative cc-db-prod track record.

CopyrightChains and Bitcoin OpenTimestamps make the exact committed record independently verifiable today. The cryptographic proof does not by itself establish authorship or ownership of the underlying recording.

Read the complete pre-generative-AI provenance and verification method.